SVG Fundamentals
This example demonstrates the basic setup of the VizHub V3 runtime, rendering a single line of text that says “Hello World” at a large, fixed font size. It shows how the exported `main` function receives a `container` DIV element and writes directly to its `innerHTML` property. The code uses plain HTML and inline CSS for styling, with no external libraries. The interactive widget feature allows the numeric font size value to be adjusted by alt-dragging it in the editor, enabling live updates to the displayed text.